Adjustable gunstock



April 30, 1957 E. N. BAKER ADJUSTABLE cuuswocx Filed Sept. 29. 1952 2Sheets-Sheet l INVEN TOR. far/rear AK flake/- April 30, 1957 E. N. BAKERADJUSTABLE GUNSTOCK 2 Sheets-Sheet 2 Filed Sept. 29, 1952 INVENTOR.far/m5? A! Baker nited States 2,790,262 Patented Apr. 30,1951

H 2,730,262 V ADJUSTABLE GUNSTOCK Earnest N. Baker, Kansas City, Mo.,assignor to Fred D. Baker, Buckner, Mo.

This invention relates to improvements in firearms and particularly withrespect to novel structure for adjustably securing the gunstock to thereceiver, the primary object being to include means for permittinglateral adjustment of the stock relative to the receiver, as Well aselevational adjustments of such gunstock.

An important object of this invention is to provide an adjustablegunstock having structure capable of permitting minute changes in therelative positions of the stock and the receiver in the field withoutthe need of tools or other accessory items.

Another object hereof is to provide a gun having a ball and socket jointinterconnecting the receiver of the gun and the stock thereof so formedas to assure strength and rigidity irrespective of the selected positionof the inter connected parts.

Another object hereof is to provide a gunstock having adjustingcharacteristics such as to render the stock universally adaptable forattachment to the receiver of various types of guns.

Another object hereof is to provide clamping structure for holding thestock in adjusted positions that is entirely housed within the stock andwhich projects therefrom automatically simply by removing a smallfastener.

Other objects include the way in which a tapered shim is utilized todetermine the relative positions of the receiver and the gunstock in alateral direction; the manner of providing extensible elements on theclamping structure for facilitating tightening and loosening by hand;and other objects including details of construction, all of which willbe made clear or become apparent as the following specificationprogresses.

In the drawings:

Figure 1 is a fragmentary, side elevational view of a gun provided withan adjustable stock made pursuant to the present invention, parts beingbroken away and in section for clearness.

Fig. 2 is a longitudinal, cross-sectional view through the gunstocktaken on line II--II of Fig.1.

Fig. 3 is an elevational view similar to Fig. 1 parts being broken awayfor clearness illustrating the shiftable structure in the extendedposition.

Fig. 4 is a fragmentary, detailed, enlarged, crosssectional view takenon line IV-JV of Fig. 3; and

Fig. 5 is a fragmentary, perspective view of the shiftable structureremoved from thegunstock and devoid of the spring actuator.

As above indicated, it is contemplated by the present invention thatgunstock be adjustably mounted on receiver 12' and, to this end there isprovided an adaptor block 14 on one end of the receiver. 12 providedwith a convex socket 16 complemental with concave end 18 z bore 28therethrough having an enlarged portion 30 at one end thereof and afrusto-conical portion 32 at the opposite end thereof.

An out-turned, annular flange 34, on a screw 36 within the bore 28,bears against a shoulder 38 that faces toward the butt end of the stock10. The post 20 extends into the bore portion 32 and receives a hingemember 40 having an internally tapped opening 42 at one end thereof forreceiving the screw 36. The opposite end of the hinge member 40 isbifurcated to receive flattened portion 44 of I post 20 and a hinge pin46 disposed transversely of the stock 10 concentric with-the socket 16and the end 18, interconnects hinge member 40 and' post 20. That end 48of the screw member 36 extending beyond the flange 34, is polygonal incross-section for slidably, but nonrotatably receiving an elongatedslide member 50, proof the stock 10. Centrally perforated'block14receives vided with a pair of opposed, longitudinal slots 52.

A cross-pin 54 on the polygonal portion 48 extends into the slots 52 forsliding movement therein. A spring 56 coiled about the slide member 50and the end portion 48 is interposed between flange 34 and a flange 58on the slide member 50 intermediate the ends of the latter. Acylindrical portion 60 on the outermost free end of the slide member 50has an annular groove 62 and a pair of opposed slots 64 for swingablyreceiving handle member 66 by means of pivot pins 68.

A small spring clip 70 in the stock 10, normally extends into the groove62 to hold the slide member 50 in the positionshown by Figs. 1 and 2 ofthe drawings, and a plug 72 closes the base end of the bore 28.

When the slide member 50 is in the position shown by Fig. 3 of thedrawings, the opposed handle members 66 may be swung outwardly on theirpivot pins 68, thereby presenting a hand-grip for facilitating turningof the screw member 36. When the latter is turned in one direction toloosen the same, gunstock 10 may be raised or lowered with respect tothe receiver 12 as desired as the concave end 18 thereof slides withinthe convex socket 16. Also, when the clamping means is thus loosened,the tapered shim 22 may be rotated with respect to the post 20 so thatthe gunstock may be shifted laterally for cast on or cast 0 purposes.Thereupon, the gunman may manipulate the handle 66 to tighten the screwmember 36 in the hinge 40 to tightly clamp the shim 22 between theadaptor block 14 and the receiver 12 and to also tightly clamp the end18 of the gunstock 10 tightly within the convex socket 16.

During the swinging movement of the gunstock 10 with respect to theadaptor block 14, the hinge 40 swings on the pivot pin 46 with respectto the post 20. During lateral adjustment, the gunstock 10 and theadaptor block 14, shift with respect to the receiver 12 there beingsuflicient looseness of fit to permit such relative movement. After thegun has been so adjusted, the handles 66 are swung on their pivot 68 tothe positions shown in Figs. 1, 2 and 3, and the slide element 50isforced into the bore portion 30 against the action of spring 56 untilthe annular groove 62 is aligned for receiving the spring clip 70.Thereupon, plug 72 is reinserted within 7 from the bore portion 30 wherethe handles 66 are readily accessible.

Having thus described the invention what is claimed as new and desiredto be secured by Letters Patentis:

1. In a gun, a receiver; a post secured to the receiver and extendingoutwardly beyond one end thereof; an adaptor block mounted on the postat said one end of the receiver, said block being provided with a convexsocket; a stock provided with a bore and a concave end fitted in saidsocket for swinging movement of the stock relative to the block; atransverse pivot pin mounted on said post within the bore concentric tosaid socket and to said concave end; a hinge mounted on the pivot pinwithin the bore; a screw in the bore and connected with the hinge forswinging movement with the stock and with respect to the post; and anabutment element on the screw bearing against the stock within the borefor holding the block clamped between the receiver and the stock, therebeing a screw actuating member slidably mounted on the screw formovement into and' out of the bore toward and away from said abutmentelement at that end of the bore opposite to the socket.

2. In a gun as set forth in claim 1 wherein is provided resilient meanswithin the bore and'bearing against said member for yieldably biasingthe latter toward the outermost end of its path of travel, andreleasable means for holding the member within the socket.

3. In a gun as set forth in claim 1 wherein said actuating member isprovided with a laterally extending handle swingably secured thereto formovement to a collapsed position when the member and the handle areretacted into the bore.

References Cited in the file of this patent UNITED STATES PATENTS

